Practical junk rig pdf

Now in paperback for the first time, practical junk rig examines the design and aerodynamic theory behind junk rigs and discusses how best to sail them. In 1988 hassler teamed up with jock mcleod to write a definitive book on junk rig designs called practical junk rig. Wharram cats rigged with one free junk rig on each hull. There are a number of limitations placed on sails by practical design, particularly. So we sized the boat to fit the job, then we needed sails that one person could manage. The following text appeared in the original newbridge brochure and is kindly supplied by the corribee owners association. It is at its best when showing you a number of sail. Now available as an ebook for the first time, practical junk rig examines the design and aerodynamic theory behind junk rigs and discusses how best to sail them.

Voyager explains junk rig choice ocean navigator january. All based on practical junk rig by hasler and mcleod. Pdf download practical ship handling pdf full ebook. I contacted and visited sunbird marine to decide which type of junk rig will be the best for our tiki46 and finally i ordered the sail plan of an advanced junk rig with wishbones and double sails. I first had a dream of building a junk rigged sailboat almost twenty years ago. Hasler and mcleods practical junk rig, pjr shows the rules to get just a little positive batten stagger, and thus troublefree reefing of their standard, flat hm sails. The authoritative handbook on designing and using junk rigs. Tammy norie has her original flat haslermcleod rig from 1983, and so this was a rare opportunity to compare rigs on two boats of the same hull. Superior control is the greatest advantage of the junk rig. Beating up a narrow river is practical and fun as it is. This encyclopaedic volume synthesises 25 years of research and development of this unique rig as adapted to western craf. Pdf practical junk rig design aerodynamics and handling.

The diagram below of the junk rig describes the basic configuration of the western version of the chinese sail. That rainy, gloomy day was a private celebration, leaving us. Includes useful technical information on designing your own junk rig. Design, aerodynamics and handling online books in format pdf. So, were i in your shoes i would play around on paper using those rules rather leaping right into making poly tarp sails. What advantages and disadvantages does a junk rig bring. Last edited by keyhavenpotterer on wed jan 26, 2011 3. At the end of may we sailed to southampton to join the summer junk rig association rally. The must read book is practical junk rig design aerodynamics and handling by hasler and mcleod. The junk rig or chinese lug rig is easy to handle, very easy to reef, easy and inexpensive to build, easy to rig, has no complex hardware, requires no winches, is easy to maintain, involves very low rigging stresses, provides a low center of effort so requires less beam or depth of keel. The junk rig association the relationship between depth of. A rig derived from the rigs used in china, and adapted for use on modern yachts. Design, aerodynamics and handling and read practical junk rig. It is a work which has been welcomed by the growing number of yachtsmen and designers throughout the world who already enjoy the benefits of junk rig or who wish to do so.

Junk rig jr for beginners the junk rig association. The junk rig shares many of the virtues of the gaff rig. The sail material could be significantly lighter for the junk due to the lower stress. Lure encyclopaedia available for download and read online in other formats. I think an interesting rig for a proa would be to combine these ideas. Jan 01, 2003 voyager explains junk rig choice jan 1, 2003. In this encyclopaedic volume the late blondie hasler and jock mclead, both preeminent in their field, have synthesised 25 years of research and development of this unique rig as adapted to western craft. The taller the rig, the greater the disadvantage of the lug so your statement about high aspect ratio not practical with a lug. After sailing on a bermuda rigged boat, and watching a big gaff rig go up, we got on a junk rigged boat and saw for ourselves how incredibly easy these sails are to raise, lower and especially reef. Rig design, aerodynamics and handling hg hasler, jk mcleod 1988, pdf. It is a work that has been welcomed by the growing number of yachtsmen and designers throughout the world who already enjoy the benefits of the junk rig or who wish to do so. Since we arrived in vero beach at christmas, my job has been to design some sails to put on her.

To get a better overview of junk rigs i suggest you read some of these books. Lets see if we can do it again when its time to prepare issue 63 for october publication. What are the advantages and disadvantages of a junk rig. The jra junk rig association, formed in 1980, aims to further the development of the junk rig and to create an international community of people. Jan 16, 2014 recently on the junk rig association forum, at. Our speaker for the june technical meeting was roselt croeser who addressed us on the conversion of his 18 ft spacesailer squirt to junk rig and on his subsequent sailing experiences in the boat.

The junk rig association practical junk rig, the book. Read practical junk rig design, aerodynamics and handling by h. Because of the large number of battens the sail is divided in many sections which can be individually controlled. At either bow, hang a jib with rigid, curved battens that extend beyond the stay, like a junk sail does. In its most traditional form the junk rig is carried on an unstayed mast i. Jan 06, 2016 pdf practical ship handling pdf full ebook.

We returned to our slip, triumphant, but with no witnesses or fanfare. Mcgrahan, former instructor of latin, set in his opinions as only a british gentleman can be, after years of careful thought and study, gave me a set of offsets he had worked up and asked me to design his boat from them. Foremost was the certainty that i would be voyaging and not racing. Check out other translated books in french, spanish languages. It outlines the rig in detail, the principles that. The junk rig association the relationship between depth. Design, aerodynamics and handling new ed by hasler, h. When sailing back we anchored in aldernay harbour and we had the very good surprise the next morning to see a wharram cat aorai rigged as pha with a junk rig on each hull motoring into the harbour. There is also a lot of rubbish written and talked about the rig, some of which we have tried and found it to be wrong. Pdf lure encyclopaedia download full pdf book download. Back in 2002, i wrote down my thoughts on the modern junk rig, looking for a way to improve. Over the thousands of years in which the chinese rig has been evolving, there have been numerous variations on the theme.

Use features like bookmarks, note taking and highlighting while reading practical junk rig. The rig contrasts starkly with the bermuda rig which is prevalent on western sail boats. The calculator does not and most likely wont support older internet explorer browsers. Jun 01, 2015 it is a work that has been welcomed by the growing number of yachtsmen and designers throughout the world who already enjoy the benefits of the junk rig or who wish to do so. The cambered panel junk rig, by arne kverneland chapter 1, preface, version 20180916 34 other sources of jr knowledge.

According to the katie miller article in practical boat owner, april 2007 the sail area of a tall rig corribee mk 2 main and 100% foretriangle, is 16. Includes all the content of the prior editions, rearranged for readability, plus an added half dozen junk rig design study plans. Available once more, this is the definitive work on the subject of designing and handling the junk rig. The rig contrasts starkly with the bermuda rig which is prevalent on modern production boats. Junk rig association magazine issue 62 page 47 for several weeks in november, 2012, the brunswick landing marina, in southern georgia, was buzzing with. The second important consideration was the rig s simplicity. David tyler has with his pdf shown what corrections should be done to keep correct batten stagger in cambered baggy panel sails as well. As a result, an article has been compiled of the top 50 for the forthcoming jra magazine, and i thought all you openminded sailors would want to read it. This encyclopaedic volume synthesises 25 years of research and development of this unique rig as adapted to western craft. Junk rig advantages and disadvantages junk is a boat, junk rig is, well, the traditional rig of a junk boat. In 1988 hassler teamed up with jock mcleod to write a definitive book on junkrig designs called practical junk rig. Practical junk rig examines the design and aerodynamic theory behind junk rigs and discusses how best to sail them.

I wanted a smaller, simpler craft, one which would be quicker to rig and get onto the water. Pdf download practical ship handling pdf full ebook video. How to design, build, and sail a chinese junkrigged boat, this is the. Bermudian, gaff, sprit or lug, but who are new to this one. Work in progress, send comments andor suggestions here.

Nov 04, 2018 after a long search, we bought the plans of the tiki46 n2 after a visit to the builders of the tiki46 n1 in uk. It is not a historical treatise but rather a detailed analysis of the intricacies of the rig, which will be of absorbing interest to both amateur owners and professional designers. My decision to buy a chinese junkrigged schooner was shaped by several factors. The book practical junk rig, by hasler and mcleod, provides an overview of the possibilities, and the website has descriptions of those possibilities and more, including recent developments that have come up since practical junk rig was first published in 1987. Hasler and mccleod recommend a 10% increase and other sources have suggested a 20% increase. Unlike the somewhat flexible strips found in most western rigs, junk rig battens are stiff, and more substantial in terms of both size and weight.

The battens would have to incline more than drawn so that they stack correctly. An analysis of the sailing efficiency of the junk yacht. It was reading annie hill that made me like the junk rig and seeing some in videos on internet. The newbridge coromandel the coromandel has been designed using the hull of the world famous corribee with a freshly styled cabin top in sympathy with safety and comfort of sailing with the chinese rig. Meeting was roselt croeser who addressed us on the conversion of his 18 ft spacesailer squirt to junk rig and on his subsequent sailing experiences in the boat. Practical junk rig design, aerodynamics and handling. The second important consideration was the rigs simplicity.

The jra junk rig association, formed in 1980, aims to further the development of the junk rig and to create an international community of people interested in such rigs to share experience and ideas. They hold the sail down when it is reefed, generally without any ties at all, and support the sail in. In practical junk rig they there are detailed rules for the geometry that needs to be achieved to get a sail that will reef easily. For the last four years ive been planning to build a junk rig for flutterbyeven before we had looked at her as a possible boat to buy. K download it once and read it on your kindle device, pc, phones or tablets. Choosing a chinese junk rig snowbird from bavaria medium. My decision to buy a chinese junk rigged schooner was shaped by several factors. Im sure many of those present were quite surprised at the amount of detail required to. The sail area is greater than the original design as advised by most sources. I bought practical junk rig and have studied materials from the junk rig association and van loans book and have come up with the attached sail plan. It outlines the rig in detail, the principles that underlie it, considers possible alternative shapes and arrangements and analyzes performance, all assisted by a wealth of detailed line illustrations. There has been a great deal written about the westernised junk rig and there are some excellent books on the subject.